/**
* Tencent is pleased to support the open source community by making 蓝鲸智云PaaS平台社区版 (BlueKing PaaS Community
* Edition) available.
* Copyright (C) 2017-2020 THL A29 Limited, a Tencent company. All rights reserved.
* Licensed under the MIT License (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://opensource.org/licenses/MIT
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
const dom = {
    nodeContains: function (root, el) {
        if (root.compareDocumentPosition) {
            return root === el || !!(root.compareDocumentPosition(el) & 16)
        }
        if (root.contains && el.nodeType === 1) {
            return root.contains(el) && root !== el
        }
        while ((el = el.parentNode)) {
            if (el === root) return true
        }
        return false
    }
}

export default dom
